Hand brake



J. F. OCUNNOR.

HAND BRAKE.

APPLICATION FILED MAY 3| 1919.

Patented Jam. ML 11922.,

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IiI'IIIIIIIIIIIIIIU IIIIIIII INVENTOR. mfwawf W I TNESSES.' ZW. 72W

.rotin n. oooNNon, or cnrcaeo, Immers, Assistme To w'rntrair n. rarnnza, or

' CRAZY, Nnw Yoan.

HAND BRAKE.

Specification of Letters Patent.

llatented Jan. 111, 12b/32.

Application led May 3, 1919. Serial No. 234,413

To @ZZ whom t may concern.'

Re it known that l, .loi-1N F. OCoNNor., a citizen ot the United States residing,- at Chicago, in the county oi' Cook and State of illinois, have invented a certain new and useiul improvement in Hand Brakes, of which the tollo ring is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specilication.

rThis invention relates to improvements in hand brakes for railway cars.

The object of the invention is to provide a simple relatively inexpensive hand brake especially adapted for railway ears and wherein an easily ratcheting action is permitted.

More specically, the object of the invention is to provide a ratchet hand brake wherein the operatingI member is adapted to drop to an inoperative position under the influence ot gravity.

ln the drawingforming a part et' this specification, Figure 1 is a vertical sectional view through portion of a car wall showing my improvements in connection therewith. Fig. 2 is a horizontal sectional view taken substantially on line 2 2 ot Fig. 1. Fig. 3 is a detailed view taken substantially on line 3 3 of Fig. 1.

.in said drawing 10 denotes the end wall ot car, and 1l the vertical brake staii". rEhe brake staff will have at its lower end its usual chain winding drum as will be understood and does not require illustration. The topl end of the stati is preferably squared as indicated at 12, and over this squared section is slipped a cast ratchet wheel 13. As will be obvious the ratchet wheel 13 will rotate with the staff 11. At its lower end, the cast ratchet wheel 13 is provided with a cylindrical bearing sleeve le which rotates in a suitable bearing' 15 provided in the bracket 1G that is preferably riveted to the car wall as indicated at 17. rEhe upper end of the ratchet wheel 13 is provided with a similar bearing' sleeve as indicated at 18, which is rotatably mounted in a corresponding bearing' 19 provided by an upper bracket casting 2O also riveted to the wall of the car. rJhe bracket 20 is provided with an upstanding' preferably hollow extension 21 which forms a convenient member for the brakeman to grip while operating the brake.

The ,lower bracket 16 is provided with an upstanding' curved flange as indicated at 22 which forms a partial hcusing for the ratchet wheel 13. .Llounted on the ratchet wheel itself and journaled about Lhe bearing` sleeve 18 thereof is a casing member 23 having` a depending substantially circular' flange 241 which is partially telescoped over the flange 22 and in conjunction with the latter conceals the ratchet wheel and protects it from the elements. rllhe casing` or housing 23 is also formed with radially extendingl flanges 25-25 united with a top wall 2G as shown most clearly in F 3, the saine torining a housing for the pawl and its mountinghereinafter explained.

The operating handle for the brake is designated generally by the reference A. rilhe same has a handle proper 27 orn suitable length and a single pawl tooth 28, shown most clearly in Fig. 2. rihe member ft is pivotally mounted on a rivet or pin 29 carried by a hanger 30 so that the member ifi. may oscillate in a horizontal plane while in the full line position shown in Fig. 1 but will drop to the substantially vertical position as shown by the dotted lines in Fig. 1, this being permitted because of the pivot provided by the bolt 32 which passes through depending 'anges 31 ot the member 30 and the flanges 25. lVhen in the dotted line position it is obvious that the pawl 28 is disengaged trom the ratchet wheel 13 and release ot' the ratchet wheel (as hereinafter explained) cannot possibly cause any injury to the brakernan such as might occur were the pawl engaged with the ratchet wheel during release.

To hold the ratchet wheel 13 and stati' against reverse rotation during the winding movement, l provide a locking dogindicated at 33, which co-operates with the lower part ot the ratchet wheel 13. Said dog 33 is pivoted on the bolt 3ft as shown in Fig. 1 and at its other ends it is provided with a handle 35 to eilect its operation. the dog 33 normally in locking engagement with the ratchet wheel, ll provide a spring 3G seated at one end over a stud 37 carried by the dog and at its other end over a stud 38 formed integrally with tl e bracket 16.

lin order to assure retaining the pawl 28 in proper position during the winding* movement, that is when the lever A is rotated in a counter-clockwise direction as shown in Fig. 2, the pawl 28 is preferably provided To hold with a shoulder 39 which engages the adjacent side .vall of the hanger 30 as shown in Fig. 2. t is obvious that the shoulder 39 limits the oscillation of the lever A with respect to the hanger in one direction but does not interfere with the free oscillation of the lever 30 in the opposite direction With respect to the hanger 30.

I claim:

ln ra brake for railway cars, the combination with a vertical brake stati' having a ratchet wheel rotatable in unison therewith; of a hanger loosely rotatably mounted With respect to said staff, a supporting member mounted on said hanger to swing about an axis extending transversely of Said staff, said supporting member having,r a flange extending radially from said axis; and a combined pavvl and gravity drop handle pivotally mounted on said supporting member to oscillate about an anis arranged atrright angles to said lirst named axis, the pavvl being adapted to co-operate With said ratchet Wheel, and the combined paWlhandle having` a laterally offset shoulder adapted to engage With said 'flange of the supporting` member When the handle is -pulled in a direction to rotate the staff lt0 JOHN F. OGONNOR.

Witness CARRIE GAILING. 

